.ui-site(@num, @color) {
    .ui-site-@{num} {
        background-color: @color;
    }
}

.ui-site(1, @ui-site-color-1);
.ui-site(2, @ui-site-color-2);
.ui-site(3, @ui-site-color-3);
.ui-site(4, @ui-site-color-4);
.ui-site(5, @ui-site-color-5);
